Roller for wringers



` invention, partly in section.

other suitable or partially through the UNTTTD STaTTs PATENT muon.

RoLLER'FoR WRINGERS.

Specification forming part of Letters Patent N 0. 52, H53, dated J annary 2321866.

To all 'whom t may concern;

Be it known that I, JAMES B. Fonsvrn, of Roxbury, in the county of Norfolk and State oi'Massachnsetts, have invented a new and useful Improvement in Rolls for Clothes-wringers, &c.; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enableothers skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l represents aside elevation of this Fig. 2 isan 'end view ofthe same. Fig. 3 is a transverse vertical section of the same.

Similar letters of reference indicate like parts.

This invention relates to certain improvements in rolls for clothes-wringers or other machines, which rolls are made ofindia-rubber or other vulcanizable gum.

The invention consists in a roll made of in-l dia-rubber or other vulcanizable gum, with a tube, thimble, or hollow core fastened in the same during the process of curing, or in any manner, said tube, thimble, or hollow core being made in one piece or in sections, and so formed as to receive a shaft or mandrel, which may be made'to pass wholly same.

It consists, further, in curinga roll made of india-rubber or other vulcanizable gum ona hollow metallic core in such a manner that the heat is equally diffused throughout the mass of vulcanizable gum, and the articles produced are of superior elasticity and toughness.

It consists, also, in the application of adjustable collars to the ends ofthe shaft for the purpose of holding the same in the tubes or the tube, and to allow of removing the same whenever it may be desirable.

In making my roll I iirst procure a tube or thimble, A, of cast-iron or any other suitable material, with a hole through its inside to receive the shaft or mandrel B. Said thimble is intended to form the core of the roll to be produced, and it may be made in one piece or in several sections,according to convenience. The outer surface ofthe core may be rough or shoulders a grooved, and previous to applying the gum I apply to it a'thin coat of varnish or cement and let it dry, the cavities or grooves in its surface being first iilled with gum, so as to produce an even surface. I then lay on the sheets or layers of india-rubber or other vuleanizable gum, which adheres to the var- .nish or cement and to the gum in the grooves or cavities, (if there are such,) and then I continue to roll up till I arr *e at the size desired. After this is done the roll U is wrapped up in cloth or other suitable material, or put into a mold, and cured or vulcanized. By curing on the hollow metallic core or tube the heat is equally diffused thr0ugh.

out the mass, and the process of curing is carried on with little trouble or loss of time and without danger of producing inferior or halfcured articles. By the curing process the hollow core is firmly embedded in the gum, so that the same cannot work loose or become displaced.

By inserting the shaft the hollow core and applying power to said shaft the roll is compelled to revolve. It will be observed may also be made insections, and it is not absolutely necessary that the same shall extend clear through the roll, though I use, by preferenc'e, a solid` shaft extending clear through.

The hole or opening in the hollow core may be of any suitable shape or form, either three, four, or more sided, or it may be provided with a feather-key to fit into a corresponding groove in the shaft, or the key may be secured in the shaft andthe groove made in the tube or core, or any other suitable device may be applied to compel the core to revolve with'the shaft. j

In order to prevent the roll from working oft' end Wise, the tube or core is provided with at both ends, which, however, when the roll is finished, are embeddedin the gum and not visible. The shaft or mandrel B is retained in the tube or core by collars b, which are adjusted on its en'ds, being held in place by set-screws c, or by any other suitable fastening. By these means I am enabled to remove the shafts from the rolls whenever it maybe desirable, and if one ofthe rolls should or mandrel B into that the shaft or mandrel Wear ont or become damaged it can easily be replaced Without throwing away the shaft and all.

I donot claim, broadly, curing or vulcanizing india-rubber, or other gum on a mandrel or shaft; but 4 What Ielaim as new, andrdesire to secure by Letters Patent, is

1. A rol-ler iu which the core is permanently secured independently ofthe shaft, and which, together with its oore7 can be removed 'from the shaft or attached to the same, substantially r as described. n

2. The adjustable collars b, in combination with the shaft or mandrel B, tube or hollow n core A, and roller, substantially as and for the purpose set forth.

The above specification of my invention *Signed by me this 30th day of October, 1865;

JAMES B. FORSYTH.

Witnesses M. M. LIVINGSTON, WM. E. LYON. 

